41 Blenheim Grove London Southwark SE15 4QS

Under consideration/assessment 26/AP/1324
Council
Date received
7 May 2026
Date validated
8 May 2026
Postcode
SE15 4QS

Description

Construction of a side dormer extension to the main roof slope at second floor level; squaring off of the existing side lean-to roof at ground floor level; replacement of the existing front and rear entrance doors to the side lean-to extension; and installation of new glazed rear doors at lower ground floor level to the main dwelling.

Southwark
Planning Authority Score
7.2/10
Good
#46 of 282 councils
Relevant to this application:
Householder decisions

Southwark is faster than most councils at deciding householder applications, ranking #43 out of 282. Householder applications are slightly more likely to be approved here (95%) than the national average (90%).

Faster than most councils
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Southwark decision performance
Based on MHCLG data, 2025
91%
Overall approval rate
Above avg (87%) #104 of 282
95%
Householder approved
Above avg (90%) #85 of 282
80%
Decided in 8 weeks
Above avg (64%) #43 of 282
36%
Extended time limit
Below avg (40%) #107 of 282
92%
Minor dwellings approved
263 decided (1-9 homes)
70%
Major dwellings approved
10 decided (10+ homes)
78%
Change of use approved
36 decided
1,589
Total decisions
137 refused in 2025